Home / 15,437.13-21,303.15-8,722.86

Finding the Fourth Proportional to 15,437.13, 21,303.15 and 8,722.86

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Solution

The fourth proportional to 15,437.13, 21,303.15 and 8,722.86 is: 12,037.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,437.13 : 21,303.15 = 8,722.86 : x
  2. Step 2: Convert to fraction form
    15,437.13/21,303.15 = 8,722.86/x
  3. Step 3: Cross multiply
    15,437.13x = 21,303.15 × 8,722.86
  4. Step 4: Simplify right side
    15,437.13x = 185,824,395.01
  5. Step 5: Solve for x
    x = 185,824,395.01/15,437.13
  6. Step 6: Final answer
    x = 12,037.50

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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.