Home / 15,047.13-20,763.47-8,332.58

Finding the Fourth Proportional to 15,047.13, 20,763.47 and 8,332.58

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Solution

The fourth proportional to 15,047.13, 20,763.47 and 8,332.58 is: 11,498.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,047.13 : 20,763.47 = 8,332.58 : x
  2. Step 2: Convert to fraction form
    15,047.13/20,763.47 = 8,332.58/x
  3. Step 3: Cross multiply
    15,047.13x = 20,763.47 × 8,332.58
  4. Step 4: Simplify right side
    15,047.13x = 173,013,129.37
  5. Step 5: Solve for x
    x = 173,013,129.37/15,047.13
  6. Step 6: Final answer
    x = 11,498.08

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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.