Home / 12,295.63-18,430.98-5,280.22

Finding the Fourth Proportional to 12,295.63, 18,430.98 and 5,280.22

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Solution

The fourth proportional to 12,295.63, 18,430.98 and 5,280.22 is: 7,914.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,295.63 : 18,430.98 = 5,280.22 : x
  2. Step 2: Convert to fraction form
    12,295.63/18,430.98 = 5,280.22/x
  3. Step 3: Cross multiply
    12,295.63x = 18,430.98 × 5,280.22
  4. Step 4: Simplify right side
    12,295.63x = 97,319,629.22
  5. Step 5: Solve for x
    x = 97,319,629.22/12,295.63
  6. Step 6: Final answer
    x = 7,914.98

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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.