Home / 10,713.69-15,993.81-9,312.81

Finding the Fourth Proportional to 10,713.69, 15,993.81 and 9,312.81

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Solution

The fourth proportional to 10,713.69, 15,993.81 and 9,312.81 is: 13,902.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,713.69 : 15,993.81 = 9,312.81 : x
  2. Step 2: Convert to fraction form
    10,713.69/15,993.81 = 9,312.81/x
  3. Step 3: Cross multiply
    10,713.69x = 15,993.81 × 9,312.81
  4. Step 4: Simplify right side
    10,713.69x = 148,947,313.71
  5. Step 5: Solve for x
    x = 148,947,313.71/10,713.69
  6. Step 6: Final answer
    x = 13,902.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.