Home / 13,698.02-20,595.93-12,615.45

Finding the Fourth Proportional to 13,698.02, 20,595.93 and 12,615.45

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Solution

The fourth proportional to 13,698.02, 20,595.93 and 12,615.45 is: 18,968.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698.02 : 20,595.93 = 12,615.45 : x
  2. Step 2: Convert to fraction form
    13,698.02/20,595.93 = 12,615.45/x
  3. Step 3: Cross multiply
    13,698.02x = 20,595.93 × 12,615.45
  4. Step 4: Simplify right side
    13,698.02x = 259,826,925.12
  5. Step 5: Solve for x
    x = 259,826,925.12/13,698.02
  6. Step 6: Final answer
    x = 18,968.22

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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.