Home / 14,459.04-19,953.63-8,490.78

Finding the Fourth Proportional to 14,459.04, 19,953.63 and 8,490.78

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Solution

The fourth proportional to 14,459.04, 19,953.63 and 8,490.78 is: 11,717.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,459.04 : 19,953.63 = 8,490.78 : x
  2. Step 2: Convert to fraction form
    14,459.04/19,953.63 = 8,490.78/x
  3. Step 3: Cross multiply
    14,459.04x = 19,953.63 × 8,490.78
  4. Step 4: Simplify right side
    14,459.04x = 169,421,882.53
  5. Step 5: Solve for x
    x = 169,421,882.53/14,459.04
  6. Step 6: Final answer
    x = 11,717.37

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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.