Home / 19,071.75-26,320.10-10,688.79

Finding the Fourth Proportional to 19,071.75, 26,320.10 and 10,688.79

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Solution

The fourth proportional to 19,071.75, 26,320.10 and 10,688.79 is: 14,751.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,071.75 : 26,320.10 = 10,688.79 : x
  2. Step 2: Convert to fraction form
    19,071.75/26,320.10 = 10,688.79/x
  3. Step 3: Cross multiply
    19,071.75x = 26,320.10 × 10,688.79
  4. Step 4: Simplify right side
    19,071.75x = 281,329,968.24
  5. Step 5: Solve for x
    x = 281,329,968.24/19,071.75
  6. Step 6: Final answer
    x = 14,751.14

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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.