Home / 13,459.02-18,573.48-7,490.40

Finding the Fourth Proportional to 13,459.02, 18,573.48 and 7,490.40

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Solution

The fourth proportional to 13,459.02, 18,573.48 and 7,490.40 is: 10,336.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.02 : 18,573.48 = 7,490.40 : x
  2. Step 2: Convert to fraction form
    13,459.02/18,573.48 = 7,490.40/x
  3. Step 3: Cross multiply
    13,459.02x = 18,573.48 × 7,490.40
  4. Step 4: Simplify right side
    13,459.02x = 139,122,794.59
  5. Step 5: Solve for x
    x = 139,122,794.59/13,459.02
  6. Step 6: Final answer
    x = 10,336.77

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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.