Home / 10,903.48-15,020.14-7,910.52

Finding the Fourth Proportional to 10,903.48, 15,020.14 and 7,910.52

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Solution

The fourth proportional to 10,903.48, 15,020.14 and 7,910.52 is: 10,897.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,903.48 : 15,020.14 = 7,910.52 : x
  2. Step 2: Convert to fraction form
    10,903.48/15,020.14 = 7,910.52/x
  3. Step 3: Cross multiply
    10,903.48x = 15,020.14 × 7,910.52
  4. Step 4: Simplify right side
    10,903.48x = 118,817,117.87
  5. Step 5: Solve for x
    x = 118,817,117.87/10,903.48
  6. Step 6: Final answer
    x = 10,897.17

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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.