Home / 15,471.47-21,346.32-8,756.95

Finding the Fourth Proportional to 15,471.47, 21,346.32 and 8,756.95

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Solution

The fourth proportional to 15,471.47, 21,346.32 and 8,756.95 is: 12,082.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,471.47 : 21,346.32 = 8,756.95 : x
  2. Step 2: Convert to fraction form
    15,471.47/21,346.32 = 8,756.95/x
  3. Step 3: Cross multiply
    15,471.47x = 21,346.32 × 8,756.95
  4. Step 4: Simplify right side
    15,471.47x = 186,928,650.77
  5. Step 5: Solve for x
    x = 186,928,650.77/15,471.47
  6. Step 6: Final answer
    x = 12,082.15

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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.