Home / 16,785.20-23,166.60-9,715.52

Finding the Fourth Proportional to 16,785.20, 23,166.60 and 9,715.52

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Solution

The fourth proportional to 16,785.20, 23,166.60 and 9,715.52 is: 13,409.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,785.20 : 23,166.60 = 9,715.52 : x
  2. Step 2: Convert to fraction form
    16,785.20/23,166.60 = 9,715.52/x
  3. Step 3: Cross multiply
    16,785.20x = 23,166.60 × 9,715.52
  4. Step 4: Simplify right side
    16,785.20x = 225,075,565.63
  5. Step 5: Solve for x
    x = 225,075,565.63/16,785.20
  6. Step 6: Final answer
    x = 13,409.17

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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.