Home / 13,279.21-19,931.13-6,710.01

Finding the Fourth Proportional to 13,279.21, 19,931.13 and 6,710.01

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Solution

The fourth proportional to 13,279.21, 19,931.13 and 6,710.01 is: 10,071.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.21 : 19,931.13 = 6,710.01 : x
  2. Step 2: Convert to fraction form
    13,279.21/19,931.13 = 6,710.01/x
  3. Step 3: Cross multiply
    13,279.21x = 19,931.13 × 6,710.01
  4. Step 4: Simplify right side
    13,279.21x = 133,737,948.41
  5. Step 5: Solve for x
    x = 133,737,948.41/13,279.21
  6. Step 6: Final answer
    x = 10,071.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.