Home / 15,376.81-21,223.44-10,068.54

Finding the Fourth Proportional to 15,376.81, 21,223.44 and 10,068.54

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Solution

The fourth proportional to 15,376.81, 21,223.44 and 10,068.54 is: 13,896.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,376.81 : 21,223.44 = 10,068.54 : x
  2. Step 2: Convert to fraction form
    15,376.81/21,223.44 = 10,068.54/x
  3. Step 3: Cross multiply
    15,376.81x = 21,223.44 × 10,068.54
  4. Step 4: Simplify right side
    15,376.81x = 213,688,948.46
  5. Step 5: Solve for x
    x = 213,688,948.46/15,376.81
  6. Step 6: Final answer
    x = 13,896.84

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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.