Home / 13,279.49-19,931.53-6,710.28

Finding the Fourth Proportional to 13,279.49, 19,931.53 and 6,710.28

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Solution

The fourth proportional to 13,279.49, 19,931.53 and 6,710.28 is: 10,071.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.49 : 19,931.53 = 6,710.28 : x
  2. Step 2: Convert to fraction form
    13,279.49/19,931.53 = 6,710.28/x
  3. Step 3: Cross multiply
    13,279.49x = 19,931.53 × 6,710.28
  4. Step 4: Simplify right side
    13,279.49x = 133,746,130.35
  5. Step 5: Solve for x
    x = 133,746,130.35/13,279.49
  6. Step 6: Final answer
    x = 10,071.64

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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.