Home / 10,583.10-15,875.15-8,730.78

Finding the Fourth Proportional to 10,583.10, 15,875.15 and 8,730.78

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Solution

The fourth proportional to 10,583.10, 15,875.15 and 8,730.78 is: 13,096.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,583.10 : 15,875.15 = 8,730.78 : x
  2. Step 2: Convert to fraction form
    10,583.10/15,875.15 = 8,730.78/x
  3. Step 3: Cross multiply
    10,583.10x = 15,875.15 × 8,730.78
  4. Step 4: Simplify right side
    10,583.10x = 138,602,398.46
  5. Step 5: Solve for x
    x = 138,602,398.46/10,583.10
  6. Step 6: Final answer
    x = 13,096.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.