Home / 10,869.04-14,990.16-8,037.28

Finding the Fourth Proportional to 10,869.04, 14,990.16 and 8,037.28

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Solution

The fourth proportional to 10,869.04, 14,990.16 and 8,037.28 is: 11,084.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,869.04 : 14,990.16 = 8,037.28 : x
  2. Step 2: Convert to fraction form
    10,869.04/14,990.16 = 8,037.28/x
  3. Step 3: Cross multiply
    10,869.04x = 14,990.16 × 8,037.28
  4. Step 4: Simplify right side
    10,869.04x = 120,480,113.16
  5. Step 5: Solve for x
    x = 120,480,113.16/10,869.04
  6. Step 6: Final answer
    x = 11,084.71

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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.