Home / 15,484.70-21,356.98-10,440.93

Finding the Fourth Proportional to 15,484.70, 21,356.98 and 10,440.93

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Solution

The fourth proportional to 15,484.70, 21,356.98 and 10,440.93 is: 14,400.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,484.70 : 21,356.98 = 10,440.93 : x
  2. Step 2: Convert to fraction form
    15,484.70/21,356.98 = 10,440.93/x
  3. Step 3: Cross multiply
    15,484.70x = 21,356.98 × 10,440.93
  4. Step 4: Simplify right side
    15,484.70x = 222,986,733.19
  5. Step 5: Solve for x
    x = 222,986,733.19/15,484.70
  6. Step 6: Final answer
    x = 14,400.46

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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.