Home / 13,459.40-18,573.58-7,490.95

Finding the Fourth Proportional to 13,459.40, 18,573.58 and 7,490.95

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Solution

The fourth proportional to 13,459.40, 18,573.58 and 7,490.95 is: 10,337.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.40 : 18,573.58 = 7,490.95 : x
  2. Step 2: Convert to fraction form
    13,459.40/18,573.58 = 7,490.95/x
  3. Step 3: Cross multiply
    13,459.40x = 18,573.58 × 7,490.95
  4. Step 4: Simplify right side
    13,459.40x = 139,133,722.03
  5. Step 5: Solve for x
    x = 139,133,722.03/13,459.40
  6. Step 6: Final answer
    x = 10,337.29

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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.