Home / 14,278.45-19,701.47-8,970.20

Finding the Fourth Proportional to 14,278.45, 19,701.47 and 8,970.20

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Solution

The fourth proportional to 14,278.45, 19,701.47 and 8,970.20 is: 12,377.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278.45 : 19,701.47 = 8,970.20 : x
  2. Step 2: Convert to fraction form
    14,278.45/19,701.47 = 8,970.20/x
  3. Step 3: Cross multiply
    14,278.45x = 19,701.47 × 8,970.20
  4. Step 4: Simplify right side
    14,278.45x = 176,726,126.19
  5. Step 5: Solve for x
    x = 176,726,126.19/14,278.45
  6. Step 6: Final answer
    x = 12,377.12

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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.