Home / 15,448.07-21,318.18-8,642.01

Finding the Fourth Proportional to 15,448.07, 21,318.18 and 8,642.01

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Solution

The fourth proportional to 15,448.07, 21,318.18 and 8,642.01 is: 11,925.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,448.07 : 21,318.18 = 8,642.01 : x
  2. Step 2: Convert to fraction form
    15,448.07/21,318.18 = 8,642.01/x
  3. Step 3: Cross multiply
    15,448.07x = 21,318.18 × 8,642.01
  4. Step 4: Simplify right side
    15,448.07x = 184,231,924.74
  5. Step 5: Solve for x
    x = 184,231,924.74/15,448.07
  6. Step 6: Final answer
    x = 11,925.89

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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.