Home / 10,518.40-14,515.82-5,802.98

Finding the Fourth Proportional to 10,518.40, 14,515.82 and 5,802.98

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Solution

The fourth proportional to 10,518.40, 14,515.82 and 5,802.98 is: 8,008.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,518.40 : 14,515.82 = 5,802.98 : x
  2. Step 2: Convert to fraction form
    10,518.40/14,515.82 = 5,802.98/x
  3. Step 3: Cross multiply
    10,518.40x = 14,515.82 × 5,802.98
  4. Step 4: Simplify right side
    10,518.40x = 84,235,013.14
  5. Step 5: Solve for x
    x = 84,235,013.14/10,518.40
  6. Step 6: Final answer
    x = 8,008.35

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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.