Home / 13,259.34-18,298.13-7,290.99

Finding the Fourth Proportional to 13,259.34, 18,298.13 and 7,290.99

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Solution

The fourth proportional to 13,259.34, 18,298.13 and 7,290.99 is: 10,061.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259.34 : 18,298.13 = 7,290.99 : x
  2. Step 2: Convert to fraction form
    13,259.34/18,298.13 = 7,290.99/x
  3. Step 3: Cross multiply
    13,259.34x = 18,298.13 × 7,290.99
  4. Step 4: Simplify right side
    13,259.34x = 133,411,446.39
  5. Step 5: Solve for x
    x = 133,411,446.39/13,259.34
  6. Step 6: Final answer
    x = 10,061.70

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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.