Home / 10,970.04-15,138.68-6,254.20

Finding the Fourth Proportional to 10,970.04, 15,138.68 and 6,254.20

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Solution

The fourth proportional to 10,970.04, 15,138.68 and 6,254.20 is: 8,630.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,970.04 : 15,138.68 = 6,254.20 : x
  2. Step 2: Convert to fraction form
    10,970.04/15,138.68 = 6,254.20/x
  3. Step 3: Cross multiply
    10,970.04x = 15,138.68 × 6,254.20
  4. Step 4: Simplify right side
    10,970.04x = 94,680,332.46
  5. Step 5: Solve for x
    x = 94,680,332.46/10,970.04
  6. Step 6: Final answer
    x = 8,630.81

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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.