Home / 10,860.16-16,293.84-5,312.38

Finding the Fourth Proportional to 10,860.16, 16,293.84 and 5,312.38

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Solution

The fourth proportional to 10,860.16, 16,293.84 and 5,312.38 is: 7,970.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,860.16 : 16,293.84 = 5,312.38 : x
  2. Step 2: Convert to fraction form
    10,860.16/16,293.84 = 5,312.38/x
  3. Step 3: Cross multiply
    10,860.16x = 16,293.84 × 5,312.38
  4. Step 4: Simplify right side
    10,860.16x = 86,559,069.74
  5. Step 5: Solve for x
    x = 86,559,069.74/10,860.16
  6. Step 6: Final answer
    x = 7,970.33

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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.