Home / 15,298.80-21,107.16-9,713.04

Finding the Fourth Proportional to 15,298.80, 21,107.16 and 9,713.04

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Solution

The fourth proportional to 15,298.80, 21,107.16 and 9,713.04 is: 13,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,298.80 : 21,107.16 = 9,713.04 : x
  2. Step 2: Convert to fraction form
    15,298.80/21,107.16 = 9,713.04/x
  3. Step 3: Cross multiply
    15,298.80x = 21,107.16 × 9,713.04
  4. Step 4: Simplify right side
    15,298.80x = 205,014,689.37
  5. Step 5: Solve for x
    x = 205,014,689.37/15,298.80
  6. Step 6: Final answer
    x = 13,400.70

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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.