Home / 15,412.47-21,271.23-11,444.91

Finding the Fourth Proportional to 15,412.47, 21,271.23 and 11,444.91

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Solution

The fourth proportional to 15,412.47, 21,271.23 and 11,444.91 is: 15,795.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,412.47 : 21,271.23 = 11,444.91 : x
  2. Step 2: Convert to fraction form
    15,412.47/21,271.23 = 11,444.91/x
  3. Step 3: Cross multiply
    15,412.47x = 21,271.23 × 11,444.91
  4. Step 4: Simplify right side
    15,412.47x = 243,447,312.94
  5. Step 5: Solve for x
    x = 243,447,312.94/15,412.47
  6. Step 6: Final answer
    x = 15,795.48

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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.