Home / 10,862.63-14,990.49-6,147.89

Finding the Fourth Proportional to 10,862.63, 14,990.49 and 6,147.89

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Solution

The fourth proportional to 10,862.63, 14,990.49 and 6,147.89 is: 8,484.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,862.63 : 14,990.49 = 6,147.89 : x
  2. Step 2: Convert to fraction form
    10,862.63/14,990.49 = 6,147.89/x
  3. Step 3: Cross multiply
    10,862.63x = 14,990.49 × 6,147.89
  4. Step 4: Simplify right side
    10,862.63x = 92,159,808.61
  5. Step 5: Solve for x
    x = 92,159,808.61/10,862.63
  6. Step 6: Final answer
    x = 8,484.12

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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.