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Finding the Fourth Proportional to 14,368.47, 19,823.87 and 8,701.40

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Solution

The fourth proportional to 14,368.47, 19,823.87 and 8,701.40 is: 12,005.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,368.47 : 19,823.87 = 8,701.40 : x
  2. Step 2: Convert to fraction form
    14,368.47/19,823.87 = 8,701.40/x
  3. Step 3: Cross multiply
    14,368.47x = 19,823.87 × 8,701.40
  4. Step 4: Simplify right side
    14,368.47x = 172,495,378.91
  5. Step 5: Solve for x
    x = 172,495,378.91/14,368.47
  6. Step 6: Final answer
    x = 12,005.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.