Home / 13,430.36-18,533.90-7,462.58

Finding the Fourth Proportional to 13,430.36, 18,533.90 and 7,462.58

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Solution

The fourth proportional to 13,430.36, 18,533.90 and 7,462.58 is: 10,298.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.36 : 18,533.90 = 7,462.58 : x
  2. Step 2: Convert to fraction form
    13,430.36/18,533.90 = 7,462.58/x
  3. Step 3: Cross multiply
    13,430.36x = 18,533.90 × 7,462.58
  4. Step 4: Simplify right side
    13,430.36x = 138,310,581.48
  5. Step 5: Solve for x
    x = 138,310,581.48/13,430.36
  6. Step 6: Final answer
    x = 10,298.35

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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.