Home / 10,970.16-15,139.08-6,254.88

Finding the Fourth Proportional to 10,970.16, 15,139.08 and 6,254.88

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Solution

The fourth proportional to 10,970.16, 15,139.08 and 6,254.88 is: 8,631.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,970.16 : 15,139.08 = 6,254.88 : x
  2. Step 2: Convert to fraction form
    10,970.16/15,139.08 = 6,254.88/x
  3. Step 3: Cross multiply
    10,970.16x = 15,139.08 × 6,254.88
  4. Step 4: Simplify right side
    10,970.16x = 94,693,128.71
  5. Step 5: Solve for x
    x = 94,693,128.71/10,970.16
  6. Step 6: Final answer
    x = 8,631.88

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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.